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Add USART DMA in Normal mode from CubeMX

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This commit is contained in:
Erick
2026-06-18 06:20:14 +02:00
parent 7b30c3cedd
commit 604e9e603b
5 changed files with 57 additions and 2 deletions
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Core/Src/stm32f4xx_hal_msp.c
+23
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@@ -26,6 +26,8 @@ extern DMA_HandleTypeDef hdma_sdio_rx;
extern DMA_HandleTypeDef hdma_sdio_tx;
extern DMA_HandleTypeDef hdma_usart1_tx;
/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN TD */
@@ -371,6 +373,25 @@ void HAL_UART_MspInit(UART_HandleTypeDef* huart)
GPIO_InitStruct.Alternate = GPIO_AF7_USART1;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
/* USART1 DMA Init */
/* USART1_TX Init */
hdma_usart1_tx.Instance = DMA2_Stream7;
hdma_usart1_tx.Init.Channel = DMA_CHANNEL_4;
hdma_usart1_tx.Init.Direction = DMA_MEMORY_TO_PERIPH;
hdma_usart1_tx.Init.PeriphInc = DMA_PINC_DISABLE;
hdma_usart1_tx.Init.MemInc = DMA_MINC_ENABLE;
hdma_usart1_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
hdma_usart1_tx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
hdma_usart1_tx.Init.Mode = DMA_NORMAL;
hdma_usart1_tx.Init.Priority = DMA_PRIORITY_LOW;
hdma_usart1_tx.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
if (HAL_DMA_Init(&hdma_usart1_tx) != HAL_OK)
{
Error_Handler();
}
__HAL_LINKDMA(huart,hdmatx,hdma_usart1_tx);
/* USER CODE BEGIN USART1_MspInit 1 */
/* USER CODE END USART1_MspInit 1 */
@@ -401,6 +422,8 @@ void HAL_UART_MspDeInit(UART_HandleTypeDef* huart)
*/
HAL_GPIO_DeInit(GPIOA, GPIO_PIN_9|GPIO_PIN_10);
/* USART1 DMA DeInit */
HAL_DMA_DeInit(huart->hdmatx);
/* USER CODE BEGIN USART1_MspDeInit 1 */
/* USER CODE END USART1_MspDeInit 1 */